58% less copper dosage to treat freshwater green algae
Recent research shows how much less copper dose is required to effectively treat algae using EarthTec versus copper sulfate.
This graph shows the percentage inhibition rates of algae growth after 96 hours of exposure to copper delivered as conventional copper sulphate compared to EarthTec.
Using a conventional copper treatment (CuSo4.5h20), nearly two and half times the copper dosage was needed to achieve the same algae inhibition.
The tests were performed by Aquatic BioAssay and Consulting Inc., against the indicator algal species, selenastrum capricornutum, according to standard bioassays of chronic exposure, 96 hours.